In the depths of the Baltic Sea lies a groundbreaking discovery, Europe’s oldest megastructure, hidden away for thousands of years. This enigmatic stone wall, uncovered by Jacob Geersen and his team, challenges our understanding of prehistoric human capabilities and opens a new chapter in the history of early European architecture. In 2021, Jacob Geersen, a ...
If you’re a fan of all things space, you’ve doubtless heard about the “devil comet,” which has captivated keen-eyed observers in the northern hemisphere for the past few weeks. Now it’s our turn, as comet 12P/Pons-Brooks is creeping into view for the southern hemisphere. Before you get too excited, let me quash your hopes. Comet ...
We breathe oxygen and nitrogen gas in our atmosphere every day, but did you know that these gases also float through space, around and between galaxies? Our team captured a high-resolution view of how these elements make it so far out into the universe. Our study is now published in Monthly Notices of the Royal ...
For millions of years, giant animals or megafauna, like giant kangaroos in Australia, roamed the lands that are now Australia and New Guinea. Many were like much larger versions of modern animals. There was a four-meter goanna called Megalania (Varanus priscus), for example, which likely ambushed its prey. This beast disappeared around 40,000 years ago, ...
We used three-dimensional imaging of ocean waves to capture freakish seas that produce a notorious phenomenon known as rogue waves. Our results are now published in Physical Review Letters. Rogue waves are giant colossi of the sea — twice as high as neighboring waves — that appear seemingly out of nowhere. Stories of unimaginable mountains ...
How Earth and the other planets of the solar system formed and evolved over the eons is a hot question for planetary scientists like me. One of the best ways to find out is by looking at rocks in space or meteorites on Earth. Getting the rocks is the hard part. Sending spacecraft to asteroids ...
After a decade of silence, one of the most powerful magnets in the universe suddenly burst back to life in late 2018. The reawakening of this “magnetar,” a city-sized star named XTE J1810-197, born from a supernova explosion, was an incredibly violent affair. The snapping and untwisting of the tangled magnetic field released enormous amounts ...
If you’ve ever been taught about how Earth orbits around the Sun, you might well think our planet travels along an oval-shaped path that brings it much closer to the Sun at some times of the year than at others. You’d have a good reason to think that, too: It’s how most textbooks show things. ...
Stars are born from huge clouds of mostly hydrogen gas floating in space. Astronomers like me study this gas because it helps us understand how stars and galaxies form and grow. Hydrogen gas gives off a faint glow that is invisible to human eyes but can be observed with a telescope tuned to detect radio ...
How fast can a neutron star drive powerful jets into space? The answer, it turns out, is about one-third the speed of light, as our team has just revealed in a new study published in Nature. Energetic cosmic beams known as jets are seen throughout our universe. They are launched when material — mainly dust ...
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